“For those who believe, no proof is necessary. For those who don't believe, no proof is possible.”

“Common sense is what tells us the earth is flat.”

“If knowledge is power, let's spread it as widely as possible and dilute it to deny those who would abuse it.”

“The only people who never fail are those who never try.”

“The art of music is good, for the reason, among others, that it produces pleasure; but what proof is it possible to give that pleasure is good? If, then, it is asserted that there is a comprehensive formula, including all things which are in themselves good, and that whatever else is good, is not so as an end, but as a mean, the formula may be accepted or rejected, but is not a subject of what is commonly understood by proof.”

“You don't believe in God, Rachel. You don't believe in goodness or loveor mercy, do you?""I haven't seen enough to form an opinion.""But you believe in the devil?""When I'm sitting in a car with him, yes," she said.”

“I believe in spectacles, but I think eyes necessary too.”